refactor(installer): align create example flags with tmux-server in INSTALL.md and remove flock dependency

scripts/install_mam.sh

@@ -83,7 +83,7 @@ fi
 
 # 1. Dependency Checks
 log_info "Verifying host dependencies..."
-DEPS=(tmux python3 sqlite3 rsync uuidgen flock)
+DEPS=(tmux python3 sqlite3 rsync uuidgen)
 MISSING_DEPS=()
 for dep in "${DEPS[@]}"; do
   if ! command -v "$dep" &>/dev/null; then